The impact of industrial wastewater on some of the morphological and physiologhical characteristics of Cyperus alternifolius, Chrysopogon zizanioide and Aloe vera

Ebrahimi, Sarehi; Razavi, Seyed Mehdi; Afshar Mohammmadian, Mansour

Volume 10, Issue 1 (6-2023) nbr 2023, 10(1): 47-61 | Back to browse issues page

‎ 20.1001.1.24236330.1402.10.1.5.8

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Ebrahimi S, Razavi S M, Afshar Mohammmadian M. The impact of industrial wastewater on some of the morphological and physiologhical characteristics of Cyperus alternifolius, Chrysopogon zizanioide and Aloe vera. nbr 2023; 10 (1) :47-61
URL: http://nbr.khu.ac.ir/article-1-3579-en.html

The impact of industrial wastewater on some of the morphological and physiologhical characteristics of Cyperus alternifolius, Chrysopogon zizanioide and Aloe vera

Sarehi Ebrahimi

, Seyed Mehdi Razavi ^*

, Mansour Afshar Mohammmadian

Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Iran , razavi694@gmail.com

Abstract: (2907 Views)

The increase of the entry of industrial effluents containing various types of heavy metals into water and soil leads to the ever-increasing spread of environmental problems. Therefore, it is necessary to find less expensive solutions to reduce the pollution. In this regard, in order to compare the effect of the removal of heavy elements on some of the morphological and physiological characteristics of C. alternifolius, Ch. zizanioides and Aloe vera plants, an experiment was conducted in the form of a randomized complete block design with three replications for 14 months at the University of Guilan. The results showed that under the treatment of industrial wastewater, the metal accumulation indices (MAI) of zinc, chromium, lead, copper, manganese, nickel, magnesium were higher in Ch. zizanioides and Aloe vera than those in C. alternifolius. In all three studied plants, the indices of root length, shoot length, total biomass and tolerance index (TI) had a significant decrease compared with those in the control plants, and Ch. zizanioides and A. vera plants had the lowest percentage of decrease. In addition, other investigated components including absorption index (UI), total soluble sugar, total phenol content, total flavonoid, total anthocyanin, total tannin, and DPPH free radical inhibition percentage increased in all three plants under industrial wastewater treatment. The highest percentage of increase in all investigated components, except DPPH free radical inhibition percentage, was observed in Ch. zizanioides. In general, it can be said that in terms of MAI and morphological and physiological characteristics, Ch. zizanioides and A. vera were more successful than the C. alternifolius. Therefore, it is recommended to plant the studied plants in the order of priority (Ch. zizanioides ˃ A. vera ˃ C. alternifolius) in soils contaminated with industrial effluents, in order to remediate the soil.

Keywords: DPPH free radical inhibition, metal accumulation index, heavy metals, phenol, phytoremediation

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